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Re: A Whiily Tern in Oz

Absolutely addictive. And thanks for the pic of Masina - another beauty.
I did have one question about the gains. I have had a good look at your build pages and was wondering about the length of the gains. IO says between 8 and 15 inches depending on plank thickness and size of boat. There are 4 planks per side on the Whilly Tern and planking is 1/4" (6mm). I have been working with small battens and also by eye so far. I was also wondering if the gains start smaller (sheer plank) and progressively get a bit longer working down to planks 2, 3 and 4. Or is each gain of each plank approx the same length. Thoughts?

Re: A Whilly Tern in Oz

Had an 'oops' moment today. Found that I had missed a chine point on Station 3. Easy fix - just drew up the missing section on the full sized patterns and transferred the missing shape to a piece of 1/2 inch mould ply and glued it on.

Re: A Whilly Tern in Oz

[QUOTE=PeterWidders;4952968]Tom - I purchased the plans from NIS Boats in Sth Aust. My understanding is that Iain Oughtred modified the initial design in 2003. Some of my plans have a date of '92 while others have '03.
Is this what you meant?

I was thinking more about wether you are planning to sail the Tern independently or combine with your other boats cruising plans.

Re: A Whiily Tern in Oz

I see you're doing your scarfs on the boat , how do you find that ? Easy ? I wasn't game and made the full length planks on the bench first.I found a heat gun and scraper made cleaning up runs very easy.Good going Peter.

Re: A Whilly Tern in Oz

Thanks Peter. Actually to date all scarfs have been done off the boat - I am tossing up whether I will have a go 'on the boat' with the last 2: possibly not as they join on mould 4 - an area of high curvature and therefore stress . Also I want to get the scarf as spot-on as possible as both sides will be clear finished. Probably stick with joining on the floor with a board under the join area and good visibility of the outer side of the finished join.

Re: A Whilly Tern in Oz

Recent work has included getting the sheer planks trimmed at bow and stern, as well as in between. Also cleaning up the planking lines: a bit to do on this part - no matter how much you try to fair them off the boat, there is still lining-off to be done once they are on the boat. A job today was to create a newspaper pattern for the 'glass cloth to be laid on the garboard planks. This will be continuous across the boat and have the keel and stems installed after glassing.

Re: A Whilly Tern in Oz

Originally Posted by imagineero

Dont you end up cutting into the ply that way?

Yes there is that risk, but if you use a light touch and keep a slight pull on waste side of cloth it comes away pretty easily. you have to keep trying for that timing of when the epoxy is at the correct stage of drying. keep replacing blade when it gets gunked/blunt = frequently.

Re: A Whilly Tern in Oz

The template issue for me was a case of trying to avoid any trimming after applying the resin. I am expecting the pay-off to be in applying the resin and then walking away. I also wanted to avoid any issue with the glass catching on the smallest sliver of wood when laying the glass in position. The 6oz cloth will not be as 'touchy' as the 4oz I used on the kayak, but I think making the template was worth the time.
Thanks for the kind words Timo.

Re: A Whilly Tern in Oz

More work on the stem templates and pieces. These will be in celery top pine. I should be able to get away with just one join with the recycled pieces I have on hand. The join will be glued with 2 dowels in the same timber to support the joint.

Template in 1/8"(3mm) MDF. Still a bit of work to do on the final fit.

This piece of celery top was once a window sill in a house in Hobart, Tasmania. Very nice colour just off the saw.

Re: A Whilly Tern in Oz

Another nice step today with the glassing of the garboard planks. This was the alternative to using 9mm ply for the garboards. I went with 6mm ply for all planking and will also glass the inside of the garboard planks. Main spreader of resin was a 4 inch plastic "squeege" made from an ice cream container. A brush also helped in some areas.